Preheat oven to 400 degrees F.
Line a baking sheet with foil and spray with an even layer of cooking oil. Spread diced beets and sweet potato or squash in an even layer. Bake for about 30 minutes until tender and brown on the edges.
While the vegetables are roasting, add all dressing ingredients to a mixing bowl and whisk until well combined. Set aside.
Place mixed greens into a large bowl and toss with about half of the dressing. Layer the greens with the roasted vegetables, almonds, pumpkin seeds, dried cranberries and dried apricots. Serve with remaining dressing on the side.